CPU:T31 Image sensor: 720P/1080p COMS sensor 1/4Inch OV1054/2063 lens: Full 3G1P Ultra Wide Angle 1.7mm Lens Angle: horizontal 160 degrees Video stream transmission: 1280*720/30fps 640*360/30fps 1280*720/30fps CMOS: Support auto white balance, gain control, backlight compensation System: Lite OS Stand-by: About 6 months(10 times wake-up/day, 30 seconds / time) Day/Night:IR-CUT automatic switch Infrared distance:850nm infrared, effective distance 5m Network configuration:one key WIFI setting+sound configuration PIR human detection:Support PIR detection and wake up Audio code standard:AAC & G.726 Audio input/output:-38dB Microphone / Built-in speaker Video mode:manual recording, alarm recording WiFi:2.4GHz Network protocol:TCP/IP,HTTP,TCP,UDP,SMTP,DHCP,DNS,P2P Wireless:WIFI 802.11b/g/n wireless network Passive human infrared detection:support Adaptive code rate:support Two-way intercom:support full-duplex real-time call Sleep time:15S Voice phone call:support Remote wake-up:support PIR wake:support Mobile app:TUYA Smart,ios10.0,android5.0 above Working temperature:-10℃ -+50℃ Working humidity: less than equal 80%RH Color:As Shown Material:ABS+Metal Package Contents: 1 * wireless smart doorbell system